condition mean min max 0 h after light 3.513185 3.3314 3.69497 4 h after light 2.054448 0.971476 3.13742 8 h after light 1.7323650000000002 1.5841 1.88063 4 h after dark 2.849595 2.17736 3.52183 8 h after dark 4.93525 4.4882 5.3823 12 h after dark 3.53084 3.24867 3.81301